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At a constant temperature, the pressure p and volume v of a gas are inversely proportional |
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At constant pressure p, the volume V of a gas is directly proportional to its absolute temperature |
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At constant volume V, the pressure p of a gas is directly proportional to its absolute temperature T |
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Which constant do you achieve if you combine all three gas laws? |
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What is the Ideal Gas equation? |
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In the Ideal Gas equation, what does R represent? |
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Definition
R = molar gas constant (8.31Jmol-1 K-1) |
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In the Ideal Gas equation, what does n represent? |
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In the equation of State, what does N represent? |
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N = number of particles (N = nNA) |
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What does k represent in the equation of state? |
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Definition
k = Boltzmann's Constant (R/NA) |
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What is the equation of State? |
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Describe how a gas exerts pressure on the walls of its container |
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Definition
>Particles have random motion & no attractive forces between them therefore move with constant velocity according to N1L
> N3L; particles collide with wall which exerts equal & opposite force on particles. They also collide with each other
>N2L - change in momentum when particles collide with wall; a force proportional to its mass and velocity.
>Lots of particles exerting forces on each other and the wall therefore steady, even force which causes a pressure on the container. |
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State the assumptions of Kinetic Theory |
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Definition
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Gas contains a large number of particles
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Particles move rapidly and hapharzardly
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Motion of particles follows Newton's laws
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There're no attractice forces between the particles
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Collisions between particles and walls, and between particles themselves are perfectly elastic
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Any forces acing during collisions and instantaneous
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Particles have negligible volume compared with the volume of the container
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Describe an experiment you could use to demonstrate Brownian Motion |
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Definition
Put some smoke in a glass cell and shine a beam of light onto it.
Use a microscope to to view the smoke particles |
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How do you convert from Celsius to Kelvin in degrees? |
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